The Passport 9500i is a radar detector that has GPS loaded into it, giving you even more of an excuse to dangerously speed without worrying about getting busted. The GPS doesn't do anything fancy like give you directions — no, that would be boring. Instead, it memorizes the locations of speed traps to better warn you about hidden 5-0, and can also memorize locations of false alarms so you aren't always hearing an alarm when you pass a convenience store with an automatic door and a microwave.

It's a whopping $450, which is much more expensive than the cheaper alternative of obeying traffic laws and driving safely. –Adam Frucci